61354387 has 2 divisors, whose sum is σ = 61354388. Its totient is φ = 61354386.

The previous prime is 61354373. The next prime is 61354393. The reversal of 61354387 is 78345316.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61354387 - 2¹⁵ = 61321619 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (61324387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30677193 + 30677194.

It is an arithmetic number, because the mean of its divisors is an integer number (30677194).

Almost surely, 2^61354387 is an apocalyptic number.

61354387 is a deficient number, since it is larger than the sum of its proper divisors (1).

61354387 is an equidigital number, since it uses as much as digits as its factorization.

61354387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 37.

The square root of 61354387 is about 7832.9041229930. The cubic root of 61354387 is about 394.4105656076.

The spelling of 61354387 in words is "sixty-one million, three hundred fifty-four thousand, three hundred eighty-seven".